GST failures w Bitmask in Linux Mint 19 Cinnamon 3.8.9

Hey, I'm running Bitmask 0.10.2 on Linux Mint 19 Cinnamon 3.8.9 on a laptop. I've, in prior versions of mint, run bitmask fine. Now, I can open it from terminal and connect to a providor but the web browser tells me there's no connection. I've not anything weird set on the firewall for mint. Everything seems to come down to errors with gstreamer, which I don't post at length,though I can run it again and post if that's helpful.
Here's what terminal tells me while it's running bitmask:

(bitmask:10469): GStreamer-WARNING **: External plugin loader failed. This most likely means that the plugin loader helper binary was not found or could not be run. You might need to set the GST_PLUGIN_SCANNER environment variable if your setup is unusual. This should normally not be required though.